After Wang Qi's strict screening, he really asked this kid to find a few eyewitnesses outside.

These people, all sanitation workers who specialize in sanitation for that generation, happened to see the suspect who was riding away in the morning when they were cleaning up the streets.

At that time, after Wang Qi was inspired by Ding Fan, he went directly to the Health Bureau and asked someone who were in charge of this section of the road on the morning of the 11th.

As soon as the leader heard that the criminal police team needed help to assist in the investigation, he immediately asked someone to help check the attendance sheet for that day, and then called someone over.

There are five or six people in total, and when Wang Qi asked, these people actually said that they had seen them, but there was a little problem with the detailed description, as if none of these people noticed the appearance of this person.

It's just that this person is riding a big 28 bicycle, passing by quickly, and several people don't see their looks clearly, but they can see that this person is quite strong, giving people a rough feeling of five big and three thick.

One of them also said that when the man passed by him, he splashed his body with water because he rode over the puddle, and smelled a very strong fishy smell on the person.

At that time, Wang Qi was still thinking about whether it would be because he had been dealing with fish for a long time, for example, working on fishing boats all year round, so he always had a fishy smell on his body.

It's just that Wang Qi's statement, as soon as it was put forward, it was denied, according to that person's recollection, the person who passed in front of him at that time did not smell fishy, but the smell of livestock.

When it comes to the smell of the beast, Wang Qi first thought of the slaughterhouse, and the wound that appeared from the corpse at that time was obviously fatal, and the murderer looked like a veteran who often used a knife, and the shot was definitely clean and neat.

Looking at it this way, it is very likely that this murderer is a person who works in a slaughterhouse, and there is a bit of a fishy smell on his body, which is not strange at all.

Among the several sanitation workers, there seems to be only one person who can briefly describe the general appearance of the murderer, which is not very accurate.

It's a good thing that there are a few clues, after all, something is better than nothing.

By the time he brought people back, Qiao Dayong had already come back first, and was reporting the results of the investigation to Ding Fan at this time.

Before Ding Fan asked him to investigate the situation of the deceased's next-door neighbor, Qiao Dayong specially went to the labor protection clothing field, asked the leaders in the field, and learned about Song Xiaohui.

I didn't expect that this Song Xiaohui looked a little scathing, but she was still very kind and enthusiastic to the colleagues around her, and she had never made any mistakes in her work, she could be regarded as conscientious, and she was also an old man in this factory, and everyone still recognized her very much.

As for whether she provoked anyone outside, the leader really couldn't say for a while, in his impression, Song Xiaohui is not a person who likes to make trouble, she laughs at everyone, and she has never blushed with anyone.

On the other side, Gu Nian also chatted with Song Xiaohui, which can be regarded as a positive understanding.

didn't get any effective news, so I accidentally saw a prenatal examination document on Song Xiaohui's desk.

After questioning, I found out that Song Xiaohui was pregnant, just because during this time, she was always a little restless, and sometimes she felt that someone was following her, and when her husband was at school, there was a little accident, and she has been in a bad mood recently, she doesn't want her husband to worry, so she has never said that she is pregnant

The only person who knows about this is himself.

"Tracking?" After listening to the report of the two, Ding Fan leaned back in his chair and recalled the situation that Liang Qi had reported to him before, as if someone had indeed been following him.

If Song Xiaohui said the same, this matter would be a bit interesting.

In other words, these two people do not have any enemies or the like. Ding Fan leaned back on the chair and said slowly: "The only one who can be regarded as an enemy is the parent of the student who had a grudge with Liang Qi because of an accident before." ”

Ding Fan said, his eyes glanced outside, and he accidentally found Wang Qi wandering around at the door, and immediately stretched out his hand to call him in, and asked him: "How is your there?" I thought your kid would come back at night, it seems that your side is going well!"

As soon as Ding Fan asked, Wang Qi suddenly laughed and said: "Boss, don't say it, it's really the same as you speculated, guess what? After I arrived at the Environmental Sanitation Bureau and asked, there were five or six people who saw that person that day, and one of them had close contact with this person, and the person rushed in front of him on a bicycle, and he said that this person had a fishy smell on his body, very much like the smell of dealing with livestock for a long time. ”

Fishy smell on livestock?

Ding Fan recalled for a moment, and reached out to take out the piece of paper that Liang Qi had given him before, which recorded some information about the student's parents.

"Dong Biao, a worker in the meat factory. Ding Fan frowned, pondered, and finally asked, "Have you seen what people look like?"

Wang Qi said excitedly: "Although he didn't see it very clearly on his face, he remembered his figure and general characteristics very clearly, especially when he remembered that when that person passed by, there was a little dark red water stain on the lower edge of his shirt, and I had already asked someone to take him to paint a portrait, but it was estimated that it was not so fast, but this portrait may be a little out of shape." ”

Just when Ding Fan was still understanding the situation, Qin Lu suddenly walked in and said to him: "There is an aunt surnamed Zhao downstairs who came to find someone, saying that there is a situation to reflect." ”

Aunt Zhao?

Isn't this the administrator aunt in the Yingchun community?

This aunt has a situation to reflect, this has to be dealt with as soon as possible, maybe some important information has been sent.

Ding Fan took Qiao Dayong downstairs, and as soon as he went downstairs, he saw Aunt Zhao standing downstairs and was already spinning in a hurry, it seemed that this time there was really something urgent to tell him.

"Auntie, why don't you go up?" Ding Fan didn't walk up to Auntie, and said with a smile: "If you come, go up and drink a glass of water!"

This Aunt Zhao is an anxious person, and she didn't say much, she stretched out her hand and pulled Ding Fan to go out, and said as she walked: "What kind of water do you drink! I have been helping you pay attention to the rubber pipe you told me last time, I didn't expect to really find it, you go and take a look!"

Last time, Ding Fan did tell Aunt Zhao about the rubber pipe on the gas tank, but he didn't expect to find it so quickly.

This thing is very likely to be a key thing, and Ding Fan has never found it, so it is suspected that the murderer finally hid it.

So Ding Fan kept asking Aunt Zhao to help pay attention to it, just to see what was famous on this thing, but in the end it was hidden by the murderer.

I heard that the aunt had found this thing, what was Ding Fan waiting for, and drove directly to the scene with the aunt and Qin Lu.

After arriving at the place, Aunt Zhao took the two straight

took the cordon at the door of Guo Dazhong's house, stretched out his hand and pointed to a pile of gas canisters opposite, and said to Ding Fan: "Where it is, when I cleaned the ground in the morning, I accidentally saw that the pipe is over there." ”

Ding Fan stretched out his hand to lift the cordon, walked in directly, squatted on the ground carefully, and carefully picked up the pipe on the ground.

Who knows, one end of this pipe is actually connected to the top of the gas tank, and the other side is poked in a hole.

Ding Fan was a little puzzled at the time, why did a hole suddenly appear in this good wall?

Aunt Zhao followed behind Ding Fan, stretched out her head to take a look, looked at the gas tank on the side, and suddenly said: "No wonder you can always see dead rats outside in the past two days, it turns out that someone has inserted a pipe into the mouse hole!"

Mouse holes?

Ding Fan glanced at the small hole in the wall in surprise, looking at this wall, it seemed that there was Liangqi's house behind it, just a wall away, someone had inserted a rubber pipe, looking at the gas tank, the valve on it was obviously opened.

"Could it be someone's child, naughty and mischievous ......" Aunt Zhao saw that Ding Fan didn't speak, and said in a low voice: "Maybe it's just that the child is playful!"

Children are playful, I am afraid that they do not have the strength to remove the pipe on the gas canister, and the valve of the gas canister is generally very tight, and the child may not have the strength to open it here.

Ding Fan thought for a long time, suddenly stood up, checked several gas canisters around, and found that all the gas canisters here were filled, and there was no empty canister, and suddenly cold sweat came down.

"I finally understood that the murderer was indeed here to kill, but he didn't think about using a knife. Ding Fan stretched out his hand and directly removed the pipe on the gas canister, handed it to Qin Lu beside him, pointed to the valve on the gas canister and said, "Extract the fingerprints on it, if you want to be the closest, I think this murderer should also appear." ”

Qin Lu looked at the rubber tube in his hand, frowned, and asked Ding Fan, "You said that he didn't think about killing people with a knife, what did he use?"

If you want to put someone to death in a short time, and then quickly leave the scene of the crime, the first thing that comes to mind is naturally a knife is more suitable.

And the murderer's first choice was not a knife, Qin Lu thought about many possibilities, and finally didn't come up with a suitable conclusion, so he had to ask Ding Fan what he thought.

But Ding Fan didn't say anything, just shook his head and said: "Killing people with a knife leaves too many traces." ”

While speaking, Ding Fan also stretched out his hand on the wall, tapped twice, and finally shook his head and said: "If you guess correctly, the thickness of the wall should not be high, you are looking at the mouse hole on the ground, the position of the edge, there are traces of artificial excavation, do you need to say the rest?"

After Ding Fan said this, Qin Lu noticed that the rat hole on the ground did seem to be a little wrong, and the position of the edge seemed to be caused by poking it twice with a sharp weapon.

"The house has not been built for a long time, and there is no trace of the cement around it falling off, but here, a whole piece has fallen, isn't it strange?" Ding Fan said with a sneer: " I only saw a lot of gas canisters placed here, and I didn't notice so much, but now that I think about it, I feel that something is wrong, because this location, facing the kitchen, is dangerous in itself, and I think these gas canisters were not originally placed here, but were later moved here, and it was also used to hide this artificially created rat hole. ”

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